package com.gxuwz.stats.controller.admin;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.gxuwz.stats.config.CurrentLoginUserUtil;
import com.gxuwz.stats.entity.NatureResearchAward;
import com.gxuwz.stats.entity.User;
import com.gxuwz.stats.security.jwt.JwtTokenUtil;
import com.gxuwz.stats.service.NatureResearchAwardService;
import com.gxuwz.stats.service.UserService;
import com.gxuwz.stats.utils.ExcelExportUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletResponse;
import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.util.*;
import java.util.stream.Collectors;

@RestController
@RequestMapping("/adminNatureReAward")
public class NatureResearchAwardController {

    @Autowired
    private NatureResearchAwardService natureResearchAwardService;
    @Autowired
    private UserService userService;

    /**
     * 分页查询
     * @param params
     * @param currentPage
     * @param pageSize
     * @return
     */
    @GetMapping("/getNatureReAwardList")
    public ResponseEntity<Map<String, Object>> getNatureReAwardList(
            @RequestParam Map<String, String> params,
            @RequestParam(defaultValue = "1") int currentPage,
            @RequestParam(defaultValue = "10") int pageSize,
            @RequestHeader("Authorization") String authorization) {
        try {
            // 提取 Token
            String token = authorization.replace("Bearer ", "");

// 解析 Token 获取当前用户ID（假设使用 JWT）
            JwtTokenUtil jwtTokenUtil = new JwtTokenUtil();
            String userId = jwtTokenUtil.getUserIdFromToken(token); // 自定义工具类解析Token

            // 创建 MyBatis Plus 的 Page 对象进行分页查询
            IPage<NatureResearchAward> page = new Page<>(currentPage, pageSize);
            QueryWrapper<NatureResearchAward> queryWrapper = new QueryWrapper<>();


// 根据用户名获取用户ID列表并加入查询条件
            if (params.containsKey("username") && !params.get("username").trim().isEmpty()) {
                List<String> userIds = userService.getUserIdsByKeyword(params.get("username"));
                if (!userIds.isEmpty()) {
                    queryWrapper.in("user_id", userIds);
                } else {
                    // 如果没有找到对应的userId，则返回空结果
                    queryWrapper.eq("1", "0");
                }
            }
            // 添加 researchAwardType 条件，限定为 "自然科学"
//            queryWrapper.eq("research_award_type", "自然科学");

            // 模糊查询条件 - 成果名称
            if (params.containsKey("natureName") && params.get("natureName") != null && !params.get("natureName").isEmpty()) {
                queryWrapper.like("nature_name", params.get("natureName"));
            }

            // 模糊查询条件 - 成果类别
            if (params.containsKey("natureCategory") && params.get("natureCategory") != null && !params.get("consultingCategory").isEmpty()) {
                queryWrapper.like("nature_category", params.get("natureCategory"));
            }

            // 模糊查询条件 - 获得时间
            if (params.containsKey("natureYear") && params.get("natureYear") != null && !params.get("natureYear").isEmpty()) {
                queryWrapper.apply("YEAR(nature_year) = {0}", params.get("natureYear"));
            }

            // 模糊查询条件 - 审核状态
            if (params.containsKey("natureReviewStatus") && params.get("natureReviewStatus")!= null &&!params.get("natureReviewStatus").isEmpty()) {
                queryWrapper.eq("nature_review_status", params.get("natureReviewStatus"));
            }

            // 查询条件 - 提交状态
            if (params.containsKey("natureStatus") && params.get("natureStatus")!= null &&!params.get("natureStatus").isEmpty()) {
                queryWrapper.eq("nature_status", params.get("natureStatus"));
            }

            // 调用 service 层的分页查询方法
            IPage<NatureResearchAward> resultPage = natureResearchAwardService.getNatureResearchAwardList(page, queryWrapper);

            // 构造返回结果
            Map<String, Object> response = new HashMap<>();
            response.put("code", 200);
            response.put("message", "查询成功");
            response.put("data", resultPage.getRecords());
            response.put("total", resultPage.getTotal());
            response.put("currentPage", resultPage.getCurrent());
            response.put("pageSize", resultPage.getSize());
            response.put("totalPages", resultPage.getPages());

            return ResponseEntity.ok(response);
        } catch (Exception e) {
            e.printStackTrace();
            Map<String, Object> errorResponse = new HashMap<>();
            errorResponse.put("code", 500);
            errorResponse.put("message", "查询失败: " + e.getMessage());
            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(errorResponse);
        }
    }

    /**
     * 新增决策咨询数据
     */
    @PostMapping("/addNatureReAward")
    public ResponseEntity<Map<String, Object>> saveNatureReAward(@RequestBody NatureResearchAward researchAward) {
        System.out.println("前端数据：" + researchAward);

        // 创建响应 Map
        Map<String, Object> response = new HashMap<>();
        //1. 验证 username 是否存在
        String username = researchAward.getUsername();
        if (username == null || username.isEmpty()) {
            response.put("code", 400);
            response.put("msg", "用户名不能为空");
            return ResponseEntity.badRequest().body(response);
        }

        // 2. 根据 username 查询 user_id
        String userId = userService.getUserIdByUsername(username);
        if (userId == null) {
            response.put("code", 400);
            response.put("msg", "用户不存在");
            return ResponseEntity.badRequest().body(response);
        }
//        System.out.println("获取到的 user_id：" + userId);

        // 3. 设置 user_id 并保存
        researchAward.setUserId(userId);

        // 1. 自动计算分值
        int baseScore = natureResearchAwardService.getScoreByType(researchAward.getNatureCategory());
        researchAward.setNatureScore(baseScore);

        // 2. 计算总分值
        natureResearchAwardService.calculateTotalScore(researchAward);

        researchAward.setNatureSubmissionTime(LocalDateTime.now());
        // 设置默认值
        researchAward.setNatureStatus("已提交");
        researchAward.setNatureReviewStatus("未审核");

        try {
            // 保存到数据库
            natureResearchAwardService.save(researchAward);

            //设置总分值到总工作量表里
            String year = null;
            if (researchAward.getNatureYear() != null && !researchAward.getNatureYear().isEmpty()) {
                year = researchAward.getNatureYear().substring(0, 4);
            }
            if (year != null) {
                natureResearchAwardService.updateTotalWorkAwardScore(userId, year);
            }

            // 返回成功响应
            response.put("code", 200);
            response.put("msg", "新增成功");
            return ResponseEntity.status(HttpStatus.CREATED).body(response);
        } catch (Exception e) {
            response.put("code", 500);
            response.put("msg", "服务器内部错误");
            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(response);
        }
    }

    /**
     * 修改决策咨询数据
     */
    @PutMapping("/updateNatureReAward")
    public ResponseEntity<Map<String, Object>> updateNatureReAward(
            @RequestBody NatureResearchAward researchAward
//            @RequestHeader("Authorization") String authorization
    ) {

        // 1. 获取前端传递的用户名
        String username = researchAward.getUsername();
//        System.out.println("shdjs="+username);
        if (username != null && !username.isEmpty()) {
            // 2. 查询用户信息
            User user = userService.getOne(new QueryWrapper<User>().eq("username", username));
//            System.out.println("user="+user);
            if (user == null) {
                Map<String, Object> response = new HashMap<>();
                response.put("code", 400);
                response.put("msg", "用户不存在");
                return ResponseEntity.badRequest().body(response);
            }
            // 3. 设置 userId
            researchAward.setUserId(user.getUserId());
        }

        // 1. 自动计算分值
        int baseScore = natureResearchAwardService.getScoreByType(researchAward.getNatureCategory());
        researchAward.setNatureScore(baseScore);

        // 2. 计算总分值
        natureResearchAwardService.calculateTotalScore(researchAward);

        natureResearchAwardService.updateById(researchAward);

        //设置总分值到总工作量表里
        String year = null;
        if (researchAward.getNatureYear() != null && !researchAward.getNatureYear().isEmpty()) {
            year = researchAward.getNatureYear().substring(0, 4);
            System.out.println("获取到的年份：" + year);
        }
        if (year != null) {
            natureResearchAwardService.updateTotalWorkAwardScore(researchAward.getUserId(), year);
        }
        Map<String, Object> response = new HashMap<>();
        response.put("code", 200);
        response.put("msg", "修改成功");
        return ResponseEntity.ok(response);
    }


    @DeleteMapping("/deleteNatures")
    public ResponseEntity<Map<String, Object>> deleteNatures(@RequestBody List<Long> ids) {
        // 1. 查出所有要删的数据
        List<NatureResearchAward> toDelete = natureResearchAwardService.listByIds(ids);

// 2. 记录所有受影响的 userId+year 组合
        Set<String> userYearSet = new HashSet<>();
        for (NatureResearchAward award : toDelete) {
            if (award.getUserId() != null && award.getNatureYear() != null && !award.getNatureYear().isEmpty()) {
                String year = award.getNatureYear().substring(0, 4);
                userYearSet.add(award.getUserId() + "#" + year);
            }
        }

// 3. 删除
        natureResearchAwardService.removeByIds(ids);

// 4. 删除后，逐个更新 TotalWork
        for (String userYear : userYearSet) {
            String[] arr = userYear.split("#");
            String userId = arr[0];
            String year = arr[1];
            natureResearchAwardService.updateTotalWorkAwardScore(userId, year);
        }
        Map<String, Object> response = new HashMap<>();
        response.put("code", 200);
        response.put("msg", "删除成功");
        return ResponseEntity.ok(response);
    }

    @PostMapping("/reviewNatureReAward")
    public ResponseEntity<Map<String, Object>> reviewNatureReAward(@RequestBody Map<String, Object> params) {
        Map<String, Object> response = new HashMap<>();
        try {
            Long natureId = Long.valueOf(params.get("natureId").toString());
            String reviewStatus = params.get("reviewStatus").toString(); // 审核通过/审核不通过
            String reviewResult = params.get("reviewResult") != null ? params.get("reviewResult").toString() : "";

            NatureResearchAward award = natureResearchAwardService.getById(natureId);
            if (award == null) {
                response.put("code", 404);
                response.put("msg", "数据不存在");
                return ResponseEntity.ok(response);
            }

            // 设置审核状态、审核时间、审核说明
            award.setNatureReviewStatus(reviewStatus);
            award.setNatureReviewTime(java.time.LocalDateTime.now());
            award.setNatureReviewResult(reviewResult);

            if ("审核通过".equals(reviewStatus)) {
                award.setNatureReviewResult(null); // 审核通过时清空说明
            }
            if ("审核不通过".equals(reviewStatus)) {
                award.setNatureStatus("未提交");
            }

            natureResearchAwardService.updateById(award);

            response.put("code", 200);
            response.put("msg", "审核成功");
            return ResponseEntity.ok(response);
        } catch (Exception e) {
            response.put("code", 500);
            response.put("msg", "审核失败：" + e.getMessage());
            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(response);
        }
    }

    @GetMapping("/export")
    public void exportNatureResearchAward(
            @RequestParam(value = "year", required = false) String year,
            HttpServletResponse response) throws Exception {

        // 3. 查询 NatureResearchAward（可按年份筛选）
        QueryWrapper<NatureResearchAward> queryWrapper = new QueryWrapper<>();

        if (year != null && !year.isEmpty()) {
            queryWrapper.like("nature_year", year.substring(0, 4)); // 替换为你的年份字段
        }

        // 只导出审核通过的数据
        queryWrapper.eq("nature_status", "已提交");

        List<NatureResearchAward> list = natureResearchAwardService.list(queryWrapper);

        // 4. 查询所有用户，构建 userId -> username 映射
        List<User> userList = userService.list();
        Map<String, String> userIdNameMap = userList.stream()
                .collect(Collectors.toMap(User::getUserId, User::getUsername, (a, b) -> a));
        for (NatureResearchAward award : list) {
            award.setUsername(userIdNameMap.getOrDefault(award.getUserId(), ""));
        }

        // 5. 给每条数据加序号（如有 rowNum 字段）
        for (int i = 0; i < list.size(); i++) {
            list.get(i).setRowNum(i + 1); // 如果有 rowNum 字段
        }

        // 6. 生成文件名
        String now = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss").format(new Date());
        String fileName = "科研奖项-自然科学-" + now + ".xlsx";

        // 7. 导出
        ExcelExportUtil.export(response, list, NatureResearchAward.class, "科研奖项-自然科学", fileName);
    }
}
